Camshaft gawo: pulasitiki m'malo mwa chitsulo

Zatsopano zatsopano zimalonjeza zabwino potengera kulemera, mtengo komanso chilengedwe

Pamodzi ndi Mahle ndi Daimler, ofufuza ku Fraunhofer Institute apanga zatsopano zanyumba ya camshaft. Malinga ndi akatswiri, izi zidzabweretsa zabwino zambiri.

Ndani adati masiku a injini zoyaka zamkati amawerengedwa? Ngati mungayang'anire kuchuluka kwazinthu zatsopano zomwe zikupitilirabe kayendetsedwe kake, mudzawona kuti lingaliro lokhazikika ndilokokomeza, ngati silinasokonezedwe. Magulu ofufuza nthawi zonse amapereka njira zatsopano zomwe zimapangitsa mafuta a petulo, dizilo ndi injini zamagetsi kukhala zamphamvu, zamafuta, komanso nthawi zambiri nthawi imodzi.

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Kulimbikitsidwa ndi utomoni wopanga m'malo mwa aluminium.

Izi ndi zomwe asayansi ku Fraunhofer Institute for Chemical Technology (ICT) akuchita. Pamodzi ndi akatswiri ochokera ku Daimler, Mahle ndi ena ogulitsa zida zamagalimoto, apanga mtundu watsopano wa camshaft module wopangidwa ndi pulasitiki m'malo mwazitsulo zopepuka. Gawoli ndi gawo lofunikira la sitima yoyendetsa, chifukwa chake kukhazikika ndichofunikira kwambiri kwa opanga. Komabe, Fraunhofer imagwiritsa ntchito mphamvu yolimba kwambiri, yolimbitsa mphamvu ya thermosetting polima (zopangira zopangira) m'malo mwa aluminiyumu ya module yomwe imagwira ntchito ngati nyumba ya camshaft.

Olemba za chitukukochi akuti izi zidzabweretsa maubwino angapo nthawi imodzi. Kumbali imodzi, potengera kulemera kwake: "Module ya camshaft ili pamutu wamiyala, ndiye kuti nthawi zambiri imakhala pamwamba panjira yoyendetsa," akufotokoza a Thomas Sorg, wasayansi ku Fraunhofer Institute. Apa, ndalama zolemera ndizothandiza makamaka chifukwa zimatsitsa mphamvu yokoka yamagalimoto. " Koma sizabwino zokhazokha pamisewu. Kuchepetsa thupi ndiye imodzi mwanjira zabwino kwambiri zochepetsera mpweya wa CO2 mgalimoto.

Mtengo ndi zabwino zanyengo

Ngakhale gawo lomwe lidapangidwa ku sukuluyi ndilopepuka kuposa module ya camshaft ya aluminiyamu, omwe adapanga limanena kuti limagonjetsedwa kwambiri ndi kutentha kwamphamvu komanso kupsinjika kwamakina ndi mankhwala, monga omwe amayambitsidwa ndi mafuta opanga mafuta ndi zotizizira. Acoustically, chitukuko chatsopano chimakhalanso ndi maubwino. Popeza mapulasitiki amakhala ngati zotetezera mawu, "mawonekedwe amawu a camshaft module amatha kukonzedwa bwino," akufotokoza Sorg.

Komabe, phindu lalikulu kwambiri limatha kukhala mtengo wotsika. Pambuyo poponyera, zotayidwa ziyenera kukhala zotsika mtengo ndikukhala ndi moyo wochepa. Poyerekeza, mtengo wowonjezeranso zida zopangira zida zamagetsi ndizochepa. Kapangidwe kawo ka monolithic kamalola kuti gawolo lizikonzedweratu mufakitole, pomwe imatha kukonzedwa mu injini ndikungoyenda pang'ono. Kuphatikiza apo, Fraunhofer ICT imalonjeza kulimba kwambiri pakukula kwake kwatsopano.

Pomaliza, padzakhalanso zabwino zanyengo. Popeza kupanga kwa aluminiyamu kumagwiritsa ntchito mphamvu zamagetsi, mpweya wa Durometer fiber optic camshaft module uyenera kutsika kwambiri.

Pomaliza

Pakadali pano, gawo la camshaft la Institute of ICT. Fraunhofer akadali pa siteji yachiwonetsero chogwira ntchito. Pa benchi yoyesera injini, gawolo linayesedwa kwa maola 600. "Ndife okondwa kwambiri ndi zomwe zachitika komanso zotsatira za mayeso," atero a Catherine Schindele, woyang'anira polojekiti ku Mahle. Komabe, mpaka pano abwenzi sanakambirane mutu wa mikhalidwe imene n'zotheka kukonzekera siriyo ntchito chitukuko.